win_sedll_auto

YARA detection rule by Felix Bilstein - yara-signator at cocacoding dot com

Detects win.sedll.

rule win_sedll_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.sedll."
        info = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.6.0"
        signator_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.sedll"
        malpedia_rule_date = "20260916"
        malpedia_hash = "53a643781c18e08f4a50949af60172d837a0b6f6"
        malpedia_version = "20260917"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    


    strings:
        $sequence_0 = { 5d c22400 8bc6 5e 8be5 }
                                                                        
        $sequence_1 = { 0f8c36ffffff 8b45e8 5f c60600 5e 5b 8be5 }
                                                                                                
        $sequence_2 = { 33f6 89442418 39742410 7e2e 8b3d???????? }
                                                                        
        $sequence_3 = { 6aff 53 8b1d???????? 6a00 6a00 }
                                                                        
        $sequence_4 = { 6a03 6a00 6a01 6800000080 56 ff15???????? 8945fc }
                                                                                                
        $sequence_5 = { 84db 0f850b010000 3b742414 751b 8d442478 68???????? }
                                                                                    
        $sequence_6 = { 83ee04 73ef 8b4d08 85c9 7416 }
                                                                        
        $sequence_7 = { 56 ff15???????? 56 8bd8 6a00 53 e8???????? }
                                                                                                
        $sequence_8 = { 83ef04 73ef 8b4d08 8b4510 51 8908 8b01 }
                                                                                                
        $sequence_9 = { 6805010000 ff15???????? ff7514 83c602 8d85f0fdffff 56 }
                                                                                    
    condition:
        7 of them and filesize < 65536
}

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

c62614df-d942-4166-b439-666ea2dc81e6

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Executable code, not a declarative rule

This submission is arbitrary [[ currentRule.format ? currentRule.format.toUpperCase() : '' ]] code, not a declarative detection rule — review it as you would any script before running it, and note that it cannot be safely aggregated or auto-executed alongside YARA/Sigma/Suricata/CRS rules.

Rejected pattern present

[[ reason ]]

What does this mean?

Format & documentation suggestions

Not a security issue — this rule is valid and was accepted as-is. These are optional fields/conventions its own format recommends, mainly affecting its quality score and how well it documents itself for other reviewers.

[[ reason ]]

What do these messages mean?

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

[[ currentRule.title ]]

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